Article History
Received: 17 June 2020
Accepted: 20 January 2021
First Online: 30 January 2021
Ethics approval and consent to participate
: An informed verbal consent was obtained from all participants. Being aware of the high illiteracy, the ethics committee approved this procedure. The study received the approval of the ethics committee of the Divine Word University in PNG.
: NA
: All the authors declare no competing interests.